One person thinks of an object (person, animal, thing) and others have to guess that object by asking yes/no questions. They have 20 tries.
You can play this game using points and assign 1 point for every 'yes' question, 3 poins for guessing the object and 5 points for the leader, if the object was not guessed.
You can play this game using points and assign 1 point for every 'yes' question, 3 poins for guessing the object and 5 points for the leader, if the object was not guessed.